{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["RNA", "cell type", "protein", "cell line"], "input": "A clone of U937 cells was selected which expressed Fc receptor I ( Fc gamma RI ) and which, after incubation with IFN-gamma for 72 h, was capable of generating high levels of lucigenin-enhanced CL ."}
{"RNA": [], "cell type": [], "protein": ["Fc receptor I", "Fc gamma RI", "IFN-gamma"], "cell line": ["U937 cells"]}